<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <style>
    
  </style>
</head>
<body>
  <div class="box">
    <p>这是vue的msg：{{ msg }}</p>
  </div>
</body>
<script src="https://lib.baomitu.com/vue/2.7.7/vue.js"></script>
<script>
  const vm = new Vue({
    el:".box",
    data:{
      msg:"hello vue"
    }
  });
</script>
</html>